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Finding the Fourth Proportional to 52,506.53, 78,713.27 and 20,478.22

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Solution

The fourth proportional to 52,506.53, 78,713.27 and 20,478.22 is: 30,699.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,506.53 : 78,713.27 = 20,478.22 : x
  2. Step 2: Convert to fraction form
    52,506.53/78,713.27 = 20,478.22/x
  3. Step 3: Cross multiply
    52,506.53x = 78,713.27 × 20,478.22
  4. Step 4: Simplify right side
    52,506.53x = 1,611,907,437.60
  5. Step 5: Solve for x
    x = 1,611,907,437.60/52,506.53
  6. Step 6: Final answer
    x = 30,699.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.